@article{ref1,
title="Production measures put lives of Polish miners at risk",
journal="Occupational health: a journal for occupational health nurses",
year="1980",
author="Kowalski, A.",
volume="32",
number="3",
pages="145-147",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0029-7917",
doi="",
url="http://dx.doi.org/"
}